Diopsoidea

The Diopsoidea are a small but diverse cosmopolitan superfamily of acalyptrate muscoids, especially prevalent in the tropics. Some flux exists in the family constituency of this group, with the Strongylophthalmyiidae and Tanypezidae formerly being in this group but now in the Nerioidea.

The family Nothybidae contains only the genus Nothybus, a group of colorful and elongated flies. The family has been recently revised.

Gobryidae is a monotypic family of flies containing the genus Gobrya, described by Francis Walker in 1860. They are relatively rare and found in Southeast Asia, Taiwan, Indonesia, Malaysia, the Philippines, and New Guinea. Gobryids are often metallic in coloration and their heads are wider than the rest of their bodies. Very little is known about the larval habits of these flies. McAlpine (1997) elevated the genus to family level. More research is needed to determine the best phylogenetic placement for Gobrya.